Improvement in sad-iron heaters



H..LOWE. Sad-Iron Heater.

Pa tntedl Nov. 24, 1868.

N. PETERS. PHDTO-LITHOGRAPHER; WASHINGTON. D 04 UNITED STATES PATENT OFFICE.

DAVID H. LOWE, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN SAD-IRON HEATERS.

Specification forming part of Letters Patent No. 84,429, dated November 24, 1868.

To all whom it may concern:

Be it known that I, DAVID H. Lown, of Boston, in the county of Suffolk and State of Massachusetts, have invented certain Im provements in Sad-Irons, and in the method of heating the same, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making part of this specification, in which- Figure 1 is a perspective view of a flat-iron of my improved construction, with the apparatus for generating the gas which I employ in heating the same. Fig. 2 is a vertical longitudinal section through the center of the same, Fig. 3 is a transverse section on the line a 00 of Fig. 2.

My invention consists in certain apparatus for generating gas from naphtha, &c., applied to the interior of a sad or other iron, for the purpose of heating the same.

To enable others skilled in the art to understand and use my invention, I will proceed to describe the manner in which I have carried it out.

In the said drawings, A is a reservoir containing naphtha, which is poured into the top by removing the screw-cap a. Across the interior of the reservoir, and near its top, extends a perforated partition, I), of an inverted conical form, the object of which is to prevent any possibility of explosion, the space 0 above the perforated partition being stufl'ed with cotton or other fibrous material, (I, to prevent the naphtha from swashing over when in motion. B is a tube connected with the bottom of the reservoir A, and supported in a vertical position by a brace, G, the lower end of which is bent at right angles and secured to the upper surface of a flat-iron, D.

At 0 the pipe is provided with a cock, E, and branches oft" horizontally, passing through an aperture, f, in the end of the flat-iron, and thence centrally, through its hollow interior, to the junction 9 of two partitions, E G, which thus divide the interior of the flat-iron into three chambers or compartments, 4, 5, 6.

To the under side of the horizontal branch of the pipe B is screwed a burner, H, whose lower side is perforated, in order that the jets of flame may proceed downward therefrom, and, passing through a conical deflector, I, impinge upon the bottom of the iron the surface of which requires to be heated.

71. is a roll of wire-gauze placed within the horizontal portion of the tube B, and extending from a point, i, to a point near the burner- H, the naphtha flowingfrom the reservoirdown and along the pipe B, through the wire-gauze roll h, the office of which is to check and graduate the flow of the naphtha to the burner H.

The cock E being opened, the liquid naphtha runs for a moment only to the burner H and on being ignited at this point the heat is sufficient to convert the naphtha into gas, which is deflected so as to spread over and heat the bottom of the iron, a passage, 7c, under the end of the pipe B, being provided, so that the heat may freely pass through from the inner compartment, 5, to the outer compartments, 4 and 6.

Should the heat become too great, it may pass outside of the iron through tubes l I, which are so formed and placed that the hand, when applied to the handle 7, will not come in contact with them.

It is evident that I may employ apparatus similar to that above described for heating any iron used by tailors and others in ironing and pressing garments, or for heating brandin g-tools, soldering-irons, 850., without departing from the spirit of the invention.

Claim. What I claim as my invention, and desire to secure by Letters Patent, is-

A sad-iron heated substantially in the manner described by gas from naphtha.

D. H. LOWE.

Witnesses:

N. W. SrEARNs, W. J. CAMBRIDGE. 

